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IVF TV Oocyte RetrievalFrom: Alessandro Gubbini (alessandro.gubbini@sti-ultrasound.com)Sun Aug 21 07:55:01 2005
> Our company is in the midst of redesigning an EV probe and I have a > question regarding length of both probe shaft and biopsy guides. > There have have been several 2nd hand reports that for IVF TV Oocyte > retrieval our transducer is too short. Normally we receive input from > our customers (system manufacturers), but in this case we are building > a probe for an OEM that has no clinical experience with the proceedure > either. > > The current probe has a length of 132mm/5.2" from tip to the point > where is starts to widen to meet the handle. The biopsy guide extends > back 125mm/4.9" to the point where the needle is inserted. As a > comparison an Acuson EV8C4 has a length of 165mm/6.5" and the needle > guide extends back 142mm/5.6" > > Questions: > 1. What is the maximum insertion length into vaginal canal necessary > for the proceedure? > 2. Are there any reasons for extra length of shaft? (cultural, to keep > hand further from vagina for instance) > 3. Is needle introduced to the guide before or after probe is in > vaginal canal? > > Please feel free to add any other details about the proceedure you > feel are relevant. I'm also curious whether the proceedure is > generally done by one person (operates probe and needle) or several > (sonographer operates probe, physician operates needle). > > Thanks in advance for your insights.
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